Genus Cochlearius is a scientific classification that refers to a bird species known as the Boat-billed Heron. Synonyms for this term include Cochlearius, Cochlearius cochlearius, and Ardea cochlearius. The Boat-billed Heron is a medium-sized bird found in Central and South America. It is identified by its unique rounded bill that resembles a boat's hull. This species is nocturnal and can be found in swamps and riverbanks. Its diet consists of fish, crustaceans, and insects. The Boat-billed Heron is an important species to the ecosystem, as it serves as a regulator of the fish population. Despite threats like habitat loss and hunting, the species is classified as of Least Concern by the IUCN.